MIL-HDBK-1004/10
APPENDIX E (continued)
N 192.479 Atmospheric corrosion control: General.
(a) Pipelines installed after July 31, 1971. Each aboveground
pipeline or portion of a pipeline installed after July 31, 1971 that is
exposed to the atmosphere must be cleaned and either coated or jacketed with a
material suitable for the prevention of atmospheric corrosion. An operator
need not comply with this paragraph, if the operator can demonstrate by test,
investigation, or experience in the area of application, that a corrosive
atmosphere does not exist.
(b) Pipelines installed before August 1, 1971. Each operator
having an above-ground pipeline or portion of a pipeline installed before
August 1, 1971 that is exposed to the atmosphere, shall-
(1)
Determine the areas of atmospheric corrosion on the
pipeline;
(2) If atmospheric corrosion is found, take remedial measures
to the extent required by the applicable paragraphs of NN 192.485, 192.487, or
192.489; and
(3) Clean and either coat or jacket the areas of atmospheric
corrosion on the pipeline with a material suitable for the prevention at
atmospheric corrosion.
[Amdt. 192-4, 36 FR 12302, June 30, 1971, as amended by Amdt. 192-33, 43 FR
39390, Sept. 5, 1978]
---
N 192.481
Atmospheric corrosion control: Monitoring.
After meeting the requirements of N 192.479 (a) and (b), each
operator shall, at intervals not exceeding 3 years for onshore pipelines and
at least once each calendar year, but with intervals not exceeding 15 months,
for offshore pipelines, re-evaluate each pipeline that is exposed to the
atmosphere and take remedial action whenever necessary to maintain protection
against atmospheric corrosion.
[Amdt. 192-33, 43 FR 39390, Sept. 5, 1978]
---
N 192.483
Remedial measures: General.
(a) Each segment of metallic pipe that replaces pipe removed from a
buried or submerged pipeline because of external corrosion must have a
properly prepared surface and must be provided with an external protective
coating that meets the requirements of N 192.461.
(b) Each segment of metallic pipe that replaces pipe removed from a
buried or submerged pipeline because of external corrosion must be
cathodically protected in accordance with this subpart.
278
Previous Page
